Because it doesn't work for Canada or Scotland either. His statement clearly defines a philosophical difference between free-market capitalism and Big Brother enslavement. I choose the former. Trump chooses the latter.
The bottom line here is that the federal government needs to get the hell out of the health care business and the insurance business. Even Mitt Romney understood that four years ago. I am sick of hearing 'repeal and replace' coming from the Donald Trumps and Noot Gingriches of the world. Repeal, then (to paraphrase John Galt) get the hell out of the way.
Trump is saying that the government will cover everybody. This is the Democrat position, and one which I vehemently oppose. And why? Because it doesn't work well at all, contrary to Trump's insistence that it does.
All he said is that his plan will make sure everybody is covered, meaning with health insurance.